What was it in the All Stars game? Just a penalty?
Yep, and the ref was almost embarrassed to give it.
We've discussed this before and my view hasn't changed. You can ban dangerous shoulder charges (and enforce it) without banning the shoulder charge. If we got rid of the pathetic 'he made contact with shoulder first' interpretation and just penalised tackles where the defender's shoulder ends up going straight through the tackler's chin (see Leuluai, or the O'Brien hit), we'd solve the problem we have.
What will happen is that we will see completely harmless tackles penalised on a technicality, and we'll all be back moaning about it after a big game.